Chicken Salad on Croissants

7 cups chicken cooked and chopped (I use large can from Sams Club)
2 cups chopped celery
2 cups grapes
1 cup chow mein noodles
1 cup cashews
1 cup water chestnuts (optional)
2 cups mayo
2 T. lemon juice

Mix all together, best if served immediately because chow mein noodles and cashews get mushy.  Serve on Croissants or other rolls/bread.